[Merge] lp:~tiagosh/messaging-app/fix-1376793 into lp:messaging-app

[Gustavo Pichorim Boiko]

Review: Needs Fixing

331	+        time.sleep(2)
332	+        count = 0
333	+        for thread in threads:
334	+            if thread.height != 0:
335	+                count+=1
336	+
337	+        self.assertThat(count, Equals(3))

I think it would be better to write a function to count the threads and use:
self.assertThat(count_visible_threads(threads), Eventually(Equals(3))

so that we don't have to rely on timers.
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https://code.launchpad.net/~tiagosh/messaging-app/fix-1376793/+merge/245812
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